<template>
  <div class="app-container">
    讲师表单
     <el-form label-width="120px">
      <el-form-item label="讲师名称">
        <el-input v-model="teacher.name"/>
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number v-model="teacher.sort" controls-position="right"/>
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career"/>
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea"/>
      </el-form-item>

      <!-- 讲师头像-->
            <el-form-item label="讲师头像">

          <!-- 头衔缩略图 -->
          <pan-thumb :image="avatar"/>
          <!-- 文件上传按钮 -->
          <el-button type="primary" icon="el-icon-upload" @click="imagecropperShow=true">更换头像
          </el-button>
          <image-cropper
                        v-show="imagecropperShow"
                        :width="200"
                        :height="200"
                        :key="imagecropperKey"
                        :url="BASE_API+'/eduoss/fileoss'"
                        field="file"
                        @close="close"
                        @crop-upload-success="cropSuccess"/>
      </el-form-item>

      <el-form-item>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>

import teacherApi from '@/api/edu/teacher'
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'
export default {
  components: { ImageCropper, PanThumb},
  data() {
    return {
      avatar: '',
      teacher: {
        name: '',
        sort: 0,
        level: 1,
        career: '',
        intro: ''
      },
     
      imagecropperShow:false,
      imagecropperKey:0,
      BASE_API:process.env.BASE_API, 
      saveBtnDisabled: false  // 保存按钮是否禁用
    }
  },
  created(){
   this.init()
  },
    watch: {  //监听
    $route(to, from) { 
      this.init()
    }
  },
  methods:{
     close() { 
        this.imagecropperShow=false
       
        this.imagecropperKey = this.imagecropperKey+1
    },
    
    cropSuccess(data) {
      this.imagecropperShow=false
       this.avatar=data.url//返回地址
       this.imagecropperKey = this.imagecropperKey+1
    },
    init() {
      if(this.$route.params && this.$route.params.id) {
          const id = this.$route.params.id
          
          this.getInfo(id)
      } else { 
        
        this.teacher = {}
      }
    },
    //根据讲师id查询的方法
    getInfo(id){
      teacherApi.getTeacherInfo(id)
      .then(response=>{
       this.teacher= response.data.teacher
      })
    },
    saveOrUpdate() {
      //判断修改还是添加, 根据teacher是否有id
      if(!this.teacher.id) {
        
        this.saveTeacher()
      } else {
        
        this.updateTeacher()
      }
      },
      saveTeacher(){
        console.log(JSON.stringify(this.teacher))
        teacherApi.addTeacher(this.teacher)
        .then(response => {
          //提示信息
          this.$message({
              type: 'success',
              message: '添加成功!'
          });
          //回到列表页面 路由跳转
          this.$router.push({path:'/teacher/table'})
        })
      },
      //修改讲师的方法
    updateTeacher() {
      teacherApi.updateTeacherInfo(this.teacher)
        .then(response => {
          
          this.$message({
              type: 'success',
              message: '修改成功!'
          });
          //回到列表页面 路由跳转
          this.$router.push({path:'/teacher/table'})
        })
    },
    }
}
</script>

